Support If the magazine's circulation continues to rise as it has over the last ten years, in another ten years it will be the largest-selling martial arts magazine in the world. ββββββββββββββ ββ βββ βββ ββββββ βββββ ββββ βββ ββββββββββ βββββββββ ββββ βββ βββββ βββ ββββββββ ββββββ ββ ββββ βββ βββββββ βββ βββ βββββββββ βββ βββββββ βββββ ββββββββ βββ ββββββββββ βββββββββββ ββββ βββ ββββ ββ βββββββ ββββ βββ ββββ βββ βββββ ββ ββ βββ ββββ βββ ββββ ββββ ββ βββ ββββββββ ββββ βββ ββ βββ βββββββββββββββ βββββββ ββββ ββββββββ βββ βββββ ββββ ββββ
The author concludes that the magazine will not be the top martial arts magazine in a decade because the publisher has refused to allow the editor to make the changes sheβs proposed. These changes are necessary for the magazine's circulation to continue to rise as quickly as it has, and it would become the top magazine were the circulation to continue rising at that rate.
This argument mistakes a sufficient condition for a necessary condition. If the magazine's circulation were to continue rising as it has for the last ten years, that is sufficient for the magazine to become the top-selling magazine. However, weβre given no reason to believe that this is the only way in which the magazine could become the top-selling magazine. Given that the argument fails to establish this condition as necessary, the author cannot conclude that the magazine will not become the top-selling magazine just because it canβt maintain the same rise in circulation.
Analysis by KevinLin
The argument's reasoning is flawed βββββββ βββ ββββββββ
identifies some changes ββββββββ βββ βββ ββββββββββ βββββββββββ ββ ββββββββ βββ βββββ ββββββββ βββ βββββββββ ββββ ββββ ββββ ββ βββββ βββββββ βββ ββββββ
equates a reduction ββ βββ ββββ ββ βββββ βββ ββββββββββ βββββββββββ ββ ββββββββββ ββββ β βββββββ ββ βββ ββββββββββ βββββββββββ
draws a conclusion ββββ ββββββ ββββββββ β βββββ ββββ ββ βββββββββ ββ βββββββ ββ ββββ ββββββββββ
takes a single ββββ ββββ ββ ββββββββββββ ββββ β βββββββ βββββ ββ ββββββ ββ ββββ ββββ βββββ ββ ββ βββββ
treats an occurrence ββββ ββββ ββββββ β βββββββ βββββββ ββ βββββββββ ββββ ββ ββββββββ βββ ββββ βββββββ